The Mountain View, Calif., companydominates search on the personal computer, but it also wants to play acentral role as Internet activity and eventually advertising dollarsmove to cellphones.

• 谷歌在个人电脑搜索领域占据主导地位，但随着互联网活动乃至广告支出向手机的转移，它也希望在这个领域能发挥核心作用。